hey fellas! hope you all had a nice labor day holiday weekend. now that fall is fast approaching, i've been thinking about leaf clean up time, which will be here all too soon in west michigan. from what very little i know about them, billy goat seems to be a quality product. i found a used lawn vacum made by them for $400. i don't know how old it is, but it seems to be in pretty good shape. owner stated the self propelled drive system was updated from chain drive to oem belt drive. anything to look out for on these machines?